In the late 1960’s the Air Force Armament Laboratory began work on an improved aircrew survival weapon designed to be lethal yet small and lightweight. Colt Industries was given a contract to develop a weapon using the ’stockless rifle’ concept. The...

Experimental triplex round from Dardick during the 1950’s to early 1960’s. The idea was to increase hit probability with a three round burst.      

Frankford Arsenal development during the early 1970’s during their work into “micro-caliber” rounds. It consisted of research into wound ballistics and testing was done at Aberdeen Proving Grounds and at Edgemoore. Various projectiles were tested.